Oil-feeder



M. KRAUT.

OIL FEEDER. APPLICATION FILED AUG.12, 191s.

Patented Nov. 16, 1920.

2 SHEETS-SHEET I.

M. KRAUT.

OIL FEEDER. APPLICATION FILED AUG-I2, 191a.

Patented Nov." 16,

2 SHEETS-SHEET 2.

a 0 u l lllllllllll' a w w ATTORNEY UNITED STATES PATENT OFFICE.

MAX KBAUT, OF LOS ANGELES, CALIFORNIA, ASSIGNOR T0 SOUTHWESTERN ENGI-NEERING COMPANY, OF LOS ANGELES, CALIFORNIA, A CORPORATION OF CALI- FORNIA.

OIL-FEEDER.

Specification of Letters Patent.

Patented Nov. 16, 1920.

1 '0 all whom it may concern:

Be it known that I, MAX KRAUT, a citizen of the United States, residingat Los Angeles, in the county of Los Angeles and State of California,have invented new and useful Improvements in Oil-Feeders, of which thefollowing is a specification.

. My invention relates to oil or other liquid feeders, and isparticularly adapted for use in connection with mineral flotationprocesses todeliver all kinds of liquid reagents, such as vegetable andmineral oils, acids, alkalis, and sodium sulfids, to ore grindingmachines or directly to flotation apparatus.

The object of my invention is to provide a means for feeding oil orother liquids regularly and uniformly.

Another object i to provide a device whereby oil or other liquids may bedelivered intermittently to any desired receptacle in measuredquantities.

A further object of my invention is to provide a device which may bereadily adjusted, whereby a predetermined quantlty of oil or otherliquids may be delivered at predetermined intervals.

A still further object of my invention is to provide a device which willbe simple and durable in construction and efficient in operation.

Other objects will appear in the detailed description of my device.

' Referring to the accompanying drawings,

Figure 1 is a side elevation of my device, parts being broken away andshown in section in order to illustrate more clearly the details ofconstruction.

Fig. 2 is an end view of the same.

Fig. 3 is a sectional view showing one end of the disk shaft and themeans for adjustin the tripping member.

I ig. 4 is a section taken on line 44 of Fi 1.

ig. 5 is a detail view of one end of one of the lever members.

In carrying out my invention, 10 represents a reservoir of any suitablematerial, preferably rectangular in shape, adapted to hold oil or otherliquids, having the bottom 11, thesides 12 and 13, and the ends 14 and15. Bearings 16 and 17 are secured to the side walls12 and 13 in whichis journaled the transverse shaft 18 having keyed thereto the annulardisk 19 arranged approximately midway between the walls 12 and 13, and

adapted to project into the tank 10. Se-

cured to the end of shaft 18 is the pulley 2O adapted to be driven atany suitable speed by means of a belt connection to a source of power(not shown).'

Secured to the wall 15 of the reservoir 10 is the guideway 22 in whichis adapted to slide the block 23 carrying the gage'blade 24. A stem 27provided with the hand wheel 25 is journaled in the bearing 26 and isthreaded on its free end to engage with a threaded aperture in the nut.23. By this arrangement it will be seen that the gage blade 24 may beminutely adjusted toward and from the periphery of the disk 19 in orderthat the thickness of the film of liquid adhering to the periphery ofsaid disk may be regulated.

Pivote d at 28 to the ears 29 extending from the wall 14 of thereservoir is the delivery trough 30, provided with the bottom 31 and theside walls 32. The bottom 31 of the upwardly extending end of saidtrough is provided with a knife blade edge 33 adapted to engage with theperiphery of the disk 19 at predetermined intervals and scrape therefromthe fihn of liquid, and direct the same into the trough 30, whereby itis delivered to the desired place.

In order that the knife blade 33 may be projected toward and from theperiphery of the disk 19 to remove the liquid at the desired intervalsas well as to regulate the degree of projection of the lmife bladetoward said disk, the following mechanism is employed: 4 Keyed to theshaft 18 and adapted to rotate therewith is the hub 35 rovided with theradial arms 36 to which is secured the ring 37 havin graduated mar s 38.A radial arm 40 is loosely pivoted on the shaft 18, it being providedwith a tapered bore adapted to engage with the tapered portion 41 of theshaft 18 and clamped thereon in adjusted position by the butterfly nut'42 threaded on the end of said shaft. The end of the arm 40 extendsoutwardly adjacent the ring 37 and is provided with the pointers 43adapted to register with the graduated marks-38 on said ring. The end ofarm 40 also carries a projecting finger 45 adapted to engage with therojection 46 of the bell crank lever 47 pivoted at 48 to the side of thereservoir 10. Secured to the end of the provided on its face the arm 49of the bell crank lever 47 is one end v of a tension spring 51 which issecured at its opposite end to a pin 52 projecting from the side of thereservoir.

The arm 53 of thebell crank lever 47 -is provided on its outwardlyextending end with a pin 55 adapted to project into a notch 56 formedadjacent to the inwardly therein a slot 65 adapted to receive the pin 66which is adjustably mounted in said slot, ashoulder on said pin engagingwith one side of the arm 64 and a butterfly nut 67 threaded on the pinengaging with the opposite side of said arm for this purpose. In orderthat the pin 66 may be delicately adj usted in the slot 65, a set screw68 is threaded in to the end of the arm 64 and engages with the pin 66.

The downwardly projecting end of the trough 30 is adapted to'rest uponthe pin 66 and is held yieldingly thereagainst by the spring 70interposed between the trough and the reservoir 10. It will be seen bythe foregoing mechanism that the lmife blade 33 of the trough 30 may beminutely adjusted toward and from the periphery of the disk 19 in orderthat a selected quantity of the liquid may be removed therefrom, itbeing only necessary to loosen the butterfly nut 67, adjust the setscrew 68, and then tighten the butterfly nut for this purpose.

The operation of'the device is as follows: Rotary motion in thedirection indicated by the arrow is imparted to the disk 19 whichcarries a film of the liquid upon its periphery, the thickness of saidfilm being regulated by the knife blade 24. When the finger 45f'engagesthe projection 46 on thebell crank lever 47, said lever is caused-torock and release the pin 55 from engagement with the slot 56, thuspermitting the spring 70 to act upon the trough 30 and draw the blade 33away from the periphery of the disk 19, whereupon no liquid will beremoved from thesurface of the disk. At this time the lever 57 restsupon the'stop pin 72 and the finger61 projects in the path of the finger62, and the pin 55 rests on thefledge 73 ofthe slot 56. Upon continuedrevolution of the disk 19 the finger 62 engages with the finger 61 andcauses the lever 58 to rock and force the blade 33 again into operativerelation with the periphery of the disk and the pin 55 to ride in theslot 56 to lock the blade into said operative position.

It will be observed that the length of time during which liquid is beingremoved from the periphery of the disk 19 is governed by thedistancebetween the fingers 45 and 62, which distance can be varied, itbeing only necessary to loosen the butterfly nut 42 and grasp the handle74 on the arm 40, and adjust the pointers 43 in the desired relation tothe graduation marks, and then tighten up on the butterfly nut 42 forthis purpose.

What I claim is:

1. A device of the class described, comprising a liquid reservoir, arotatable element mounted in said reservoir and adapted to collect afilm of the liquid on its periph cry on its rotation, and means forregulating the thickness of the liquid film.

2. A device of the class described, comprising a liquid reservoir, arotatable element mounted in said reservoir, and means for removing apredetermined quantity of said liquid from said rotatable element attimed intervals:

3. A device of the class described, comprising a liquid reservoir, arotatable disk mounted in said reservoir and adapted to collect a filmof liquid on its periphery, means for regulating the thickness of saidliquid film on said periphery, and means for removing a selectedquantity of said film from the periphery at timed intervals.

4. A device of the class described, comprising a liquid reservoir,- arotatable disk mounted in said reservoir, a scraper pivoted adjacent theperiphery of said disk, a lever for rocking said scraper, and.meansassociated with said disk for actuating said lever at predeterminedintervals.

A device of the class described, com-.

prising a liquid reservoir, a rotatable disk mounted in said reservoir,a scraper pivoted adjacent the periphery of said disk for removingliquid therefrom at timed, intervals, a graduated dial carried by saiddisk and having an adjustable pointer associated therewith fordetermining said intervals, a lever associated with said scraper forrocking the same toward and away from said periphery, a locking memberassociated with said lever for holding the scraper in operative relationwith said periphery, a tripping MAX KRAUT.

